A big change for us, a small change for you A new look, but we’re still the same team. We’re still the same, we just look a little bit different. Introducing Broomhall Drainage + Civil (BDC)! Due to growth and wanting to concentrate our efforts in the drainage and civil industry, we have decided to give this division of Allied Water System Ltd t/as Think Water Canterbury extra prominence by having its own, stand-alone brand.